Episode 2606: Katrin Klingbeil - variable conceptions in algebra

Guilherme Henrique Gomes da Silva from São Paulo State University (UNESP) discusses his article, "Mathematics education, anti-Black racism, and affirmative action in Brazilian higher education," published in the International Journal of Mathematical Education in Science and Technology. Article URL: https://doi.org/10.1080/0020739X.2025.2580960  Guilherme's professional webpage: https://www2.unesp.br/portaldocentes/docentes/211043?lang=en  List of episodes

Samuel Otten from the University of Missouri talks about two forthcoming papers and also invites math educators to provide their input on a new endeavor checking the evidence behind teaching/learning claims in math education. Share your opinions via the quick survey at www.InspectingMathEd.org. (Starts at 0:36) PME-NA Conference Proceedings, which will contain the paper "Patterns in algebra instruction: Summarizing two studies across 14 states in the U.S." by Otten, de Araujo, Ellis, & Candela (2026). (Starts at 11:27) For the Learning of Mathematics journal, which will publish the article "Beliefs beneath our incremental approach to professional development" by de Araujo, Candela, & Otten (in press). (Starts at 14:18) New project, Inspecting Foundations of claims in math education. Take the 5-minute survey at https://InspectingMathEd.org  (Starts at 17:27) Mizzou assistant professor position [https://www.higheredjobs.com/search/details.cfm?JobCode=179565193&Title=Assistant%20Professor%2C%20Tenure%20Track%20%2D%20Mathematics%20Education] and Mizzou PhD program [https://cehd.missouri.edu/degree/mathematics-education-phd/] List of episodes

Marcus Gustafsson from Karlstad University in Sweden discusses his article, "Empirical findings on the teaching and learning of quadratic equations: A systematic review," published in Educational Studies in Mathematics (Volume 123). Marcus's professional webpage (https://www.kau.se/en/researchers/marcus-gustafsson) Article (https://doi.org/10.1007/s10649-026-10493-6) List of Past Episodes

Katrin Klingbeil from the University of Duisberg-Essen discusses the article, "The omnipresence of the letter-as-object misconception: A multilevel Latent Transition Analysis on understanding variables," published in Educational Studies in Mathematics (Volume 120). Co-author: Filip Moons Katrin's professional webpage: https://www.uni-due.de/didmath/ag_barzel/katrin-klingbeil.php Article URL: https://doi.org/10.1007/s10649-025-10428-7 List of episodes

Megan Staples from the University of Connecticut discusses the article, "Designing for mathematically enriched democratic dialogues: The MinD lesson model," published in Educational Designer (Vol. 5). Co-authors: K. Seeto and X. Wei Mathematics in Democracy project website: https://mathindemocracy.education.uconn.edu/ Article URL: https://www.educationaldesigner.org/ed/volume5/issue18/article75/ Megan's professional webpage: https://education.uconn.edu/person/megan-staples/ List of episodes

Patrick Sullivan from Missouri State University discusses his book See It, Say It, Symbolize It from Solution Tree. Patrick's professional webpage: https://search.missouristate.edu/people/patricksullivan Book URL: https://www.solutiontree.com/see-it-say-it-symbolize-it.html List of episodes

Juli Dixon from the University of Central Florida discusses her career in mathematics education, going back to her intentions as a 7th grader, her work across the grade levels and adult education, problem solving, geometric transformations, multilingual learners, and sociomathematical norms. Juli's website: https://www.dnamath.com/  Juli's book series: Solution Tree "Making Sense of Mathematics for Teaching" List of episodes 

Episode 2602: Susan Empson discusses her career in mathematics education research, from the University of Wisconsin through the CGI project and students' fraction strategies to several additional studies at the University of Texas and the University of Missouri. Susan's Professional Webpage: https://cehd.missouri.edu/person/susan-empson/ Susan's ResearchGate Profile (can request articles): https://www.researchgate.net/profile/Susan-Empson Susan's Fraction Book for Teachers: Extending Children's Mathematics: Fractions & Decimals List of episodes

Episode 2601: Nicole Joseph from Vanderbilt University discusses the open access article "Conceptualizing intersectional harm in mathematics classrooms: An analysis of high school Black girls' experiences," published in Urban Education (Vol. 60). Co-authors: A-A Douglas, M. T. Harmon. Article URL: https://journals.sagepub.com/doi/full/10.1177/00420859241293377  Nicole's Professional Webpage List of episodes

Jana Višňovská from the University of Queensland (Australia) and José Cortina Morfín from the National Pedagogical University in Mexico City (Mexico) discuss their article, "Curriculum and mathematical coherence: Exploring the tensions in teaching and learning number," published in ZDM Mathematics Education (Volume 57). Article URL: https://link.springer.com/article/10.1007/s11858-025-01706-y Jana's Professional Webpage: Dr Jana Visnovska - School of Education - University of Queensland José's Professional Webpage: UPN - José Luis Cortina Morfín List of episodes